Erasable optical recording materials and methods based on tellurium alloys

Invention: Erasable optical recording materials and methods based on tellurium alloys

Year	Description
1990	Invention patented by Kee C. Pan, Yuan S. Tyan, and Fridrich Vazan on September 16th, 1990. Abstract: An optical recording element comprising a thin film of an alloy is disclosed. The alloy is represented by the formula wherein a is between about 0.38 and 0.62; x is between about 0.05 and 0.65; y divided by z is between about 0.5 and 5; with the proviso that the product of (y+z) and (1-a) is greater than about 0.20. The alloys have improved data stability while retaining excellent write-erase characteristics.
Source: selected by the editor from original sources.